7644226544 has 20 divisors (see below), whose sum is σ = 14812143480. Its totient is φ = 3821737920.

The previous prime is 7644226451. The next prime is 7644226561. The reversal of 7644226544 is 4456224467.

It is a junction number, because it is equal to n+sod(n) for n = 7644226495 and 7644226504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223034 + ... + 255014.

It is an arithmetic number, because the mean of its divisors is an integer number (740607174).

Almost surely, 2^7644226544 is an apocalyptic number.

It is an amenable number.

7644226544 is a deficient number, since it is larger than the sum of its proper divisors (7167916936).

7644226544 is a wasteful number, since it uses less digits than its factorization.

7644226544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46928 (or 46922 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 44.

The square root of 7644226544 is about 87431.2675419955. The cubic root of 7644226544 is about 1969.9015251351.

The spelling of 7644226544 in words is "seven billion, six hundred forty-four million, two hundred twenty-six thousand, five hundred forty-four".